Upgrading to Windows 7 will be so painful that you should just buy a new PC, says Walt Mossberg. Not what the folks in Redmond wanted to hear...

Walt Mossberg: On October 22, Microsoft will finally release a new version of Windows that will be as good as the deeply disappointing Windows Vista should have been when it came out in January 2007. The new edition, called Windows 7, is a big improvement over both Vista and the sturdy, 2001-vintage Windows XP still widely in use. It will give Apple’s long-superior Mac OS X operating system a run for its money (though Apple might maintain its edge with a new version, called Snow Leopard, due in September).

But how will Windows users transition their current computers to the new Windows 7? While this latest operating system stresses simplicity, the upgrade process will be anything but simple for the huge base of average consumers still using XP, who likely outnumber Vista users. It will be frustrating, tedious and labor-intensive.

In fact, the process will be so painful that, for many XP users, the easiest solution may be to buy a new PC preloaded with Windows 7, if they can afford such a purchase in these dire economic times. In fact, that’s the option Microsoft recommends for XP users. (Conveniently, this option also helps Microsoft’s partners that make PCs.)